package com.wn.class30.service;

import com.wn.class30.entity.JoinImgHead;

import java.util.List;

public interface JoinImgHeadService {
    List<JoinImgHead> selectJoinImgHeads()throws Exception;
    void deleteImgHeads()throws Exception;
    void insertImgHead(JoinImgHead joinImgHead)throws Exception;
}
